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Finding the Fourth Proportional to 178,192.72, 245,905.50 and 97,620.40

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Solution

The fourth proportional to 178,192.72, 245,905.50 and 97,620.40 is: 134,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,192.72 : 245,905.50 = 97,620.40 : x
  2. Step 2: Convert to fraction form
    178,192.72/245,905.50 = 97,620.40/x
  3. Step 3: Cross multiply
    178,192.72x = 245,905.50 × 97,620.40
  4. Step 4: Simplify right side
    178,192.72x = 24,005,393,272.20
  5. Step 5: Solve for x
    x = 24,005,393,272.20/178,192.72
  6. Step 6: Final answer
    x = 134,715.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.